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I'm tryin' to use the following:

\begin{minipage}{0.06 \textwidth}\psshadowbox[linecolor=verde,framearc=0.5,linewidth=0.3pt,fillstyle=gradient,
gradbegin=verdec, gradend=yellow,framesep=5pt,shadowcolor=verdec, gradmidpoint=1]{$1$}\vspace{-0.01cm}
\end{minipage}

LaTeX told me that I need the ...